allery৬০ জন পৰীক্ষাৰ্থীৰ এক পৰীক্ষাত ৪০ জন Paper 1-ত উত্তীৰ্ণ হ'ল, ৩৫ জন Paper 2-ত উত্তীৰ্ণ হ'ল আৰু ২৫ জন দুয়োখনতে উত্তীৰ্ণ হ'ল। কেৱল Paper 2-ত কিমানজন উত্তীৰ্ণ হ'ল?
A5
B8
C10
D15
Answer & Solution
Correct answer: C. 10
কেৱল Paper 2 = n(P2) - n(P1 ∩ P2) = 35 - 25 = 10।
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